参数资料
| 型号： | MAX9756EVKIT |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/13页 |
| 文件大小： | 0K |
| 描述： | EVAL KIT FOR MAX9756 |
| 标准包装： | 1 |
| 类型： | 放大器：AB 类音频放大器 |
| 适用于相关产品： | MAX9756 |
| 所含物品： | 完全组装的评估板 |
MAX9756 Evaluation Kit
Table 4. JU6 Jumper Selection
SHUNT POSITION
1-2*
2-3
* Default position.
Table 5. JU9 Jumper Selection
REGEN PIN
High
Low
Regulator enabled
Regulator disabled
FUNCTION
SHUNT
POSITION
1-2
2-3*
SET PIN
High
Low
FUNCTION
The regulator ’ s feedback input (SET) is connected to resistor-divider R6/R7.
Note: The resistors installed on the EV kit set the output voltage to 3.3V.
The regulator ’ s feedback input (SET) is connected to GND. The output voltage is 4.65V.
* Default position.
Automatic Level Control
The ALC feature limits amplifier power to protect the
loudspeaker and makes dynamic inputs more intelligi-
ble by boosting low-level signals without distorting the
high-level signals. Figure 1 illustrates the ALC circuitry
in action. Refer to the Automatic Level Control (ALC)
section of the MAX9756/MAX9757/MAX9758 data sheet
and see the Designing with Maxim’s Automatic Level
Control (ALC) section for more information.
INPUT SIGNAL
WITH SUDDEN
CHANGES IN
RMS VOLTAGE
Automatic Level-Control Timing
Jumpers JU7, JU10, and JU11 set the timing of the
MAX9756 ’ s ALC feature. Jumper JU7 sets the voltage
potential at the DR pin, which determines the release
time. Jumpers JU10 and JU11 determine the attack
time by setting the capacitance on the CT pin. Jumper
JU12 shorts the CT pin to GND, disabling the ALC fea-
ture. See Tables 6 and 7 for shunt positions.
ATTACK
TIME
HOLD
TIME
RELEASE
LOW LEVELS BOOSTED
WHEN SIGNAL IS BELOW
Figure 1. Full Cycle of the Automatic Level Control. (The hold time of a MAX9756 amplifier is set at a fixed 50ms while the attack time
and attack to release time ratio can be adjusted by external components).
4
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9757ETJ+ | 功能描述:音频放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| MAX9757ETJ+T | 功能描述:音频放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| MAX9758ETJ+ | 功能描述:音频放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| MAX9758ETJ+T | 功能描述:音频放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| MAX9759ETE+ | 功能描述:音频放大器 3.2W Low-EMI Class D Amplifier RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
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